Loose-leaf binder.



W. S. PROUDFIT.

LOOSE LEAF BINDER.

APPLICATION men MAYIO. l9i5.

3 256328, Patentml P35193918;

IN VEN TOR.

v William $.PIPOLLCHif- BY M: w w

4.4; ATTORNEY of the slot.

WILLIAM S. PBOUDFIT, 0F GRAND RAPIDS, MICHIGAN.

LOOSE-LEAF BINDER.

To all whom it may concern:

Be it known that I, \VILLIAM S. PROUDFIT, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented new and useful Improvements in Loose-Leaf Binders, of which the following is a specification.

The present invention relates to loose-leaf binders; and its object is generally, to provide such a binder which shall be simple and economical in construction; and more particularly, such a binder having simple and readily operable adjusting means.

These objects are attained by. and the invention finds preferable embodiment in. the structure hereinafter described and illustrated by the accompanying drawings, in which:

Figure 1 is a plan view of the inside of a locse-leaf-binder opened out flat;

Fig. 2 is a fragmentary view in perspective of the same; and

Fig. 3 is a transverse section of the wedging member. on line 3-3 of Fig. 2.

In the embodiment of the invention chosen for illustration by the drawings and for detailed description herein, the covers 1 are connected by a back member 2. Flexible leaf-holding members 3 are secured to one cover and extend through suitable orifices or slots 4 in the leaves 5, and through slots 6 in the other cover, such slots being in the construction shown formed by the clips 7 carried b a rigid plate 11 secured to the cover. These leaf-holding members are drawn by hand to a suflicient tension to properly secure the leaves. and are then held in such adjust d position by wedging mem bers 8 pivotally mounted on the plate and adapted to be turned in the direction of their wedging operation. to t e position shown at the right hand side of Fig. 1. to engage between the leaf-holding member and a wall Suitable stops 9 (the edge of the clips as shown) are provided against which the proiection 10 of the wedging members may abut. to limit the disengaging movement of said members.

In the drawings both covers are shown of the same form and construction: but only one of them may carry the adjusting means, the leaf-holding members being secured to the other in any suitable way.

Inasmuch as the wedging member swings in an arc and engages one side of the leafholding member While the other side of the Specification of Letters Patent.

Patented Feb. 19, 1918.

Application filed May 10, 1915. Serial No. 27,016.

leaf-holding member is held against a stationary partthe wall of the slot-and slides thereon in a straight line, it will be seen that when the wedged leaf-holding member tends to move between wedging member and slot wall, the frictional binding on its opposite sides is not in parallel lines, whereby it is more securely held in adjusted position. It will also be seen that the strain on the leaf-holding member tending to separate the covers also tends to wedge the wedging member more tightly.

The wedging means may be of any other suitable form than that shown or described.

The covers, as on their plates 11, carry inwardly-turned flanges 12 which when the covers are closed engage the fly-leaf or other outer leaf on each side of the leaf body and hold the clips against the abrasive or marring contact with said leaves, which contact would otherwise occur in the closed position of the covers and in their swinging movement in opening and closing. Said flange forms a sufficiently continuous and rigid binding edge for the covers when closed: without such flange, the only binding edge of the closed covers would be afforded by the clips themselves pressing against the out r leaves.

The invention being intended to be defined solely by the claims, is not to be limited by details of construction shown or described.

\Vbat is claimed is:

1. In a loose-leaf binder; a pair of covers; a flexible leaf-holding member secured to one cover and extending through a guide clip on the other cover; a member adapted to engage between the leaf-holding member and a wall of the guide-clip to hold the leafholding member in adjusted position. and pivotally mounted on the last mentioned. cover and adapted to swing in the direction of its wedging movement; the last mentioned cover carrying an inwardly-turned flange adapted to engage the outer leaf when said cover is closed and hold the clip against marring contact with said leaf.

2. In a loose-leaf binder; a pair of covers; a flexible leaf-holding member secured to one cover and extending through a guideclip on the other cover; and a member adaptcd to engage between the leaf-holding memleer and a wall of the guide clip to hold the leaf-holding member in adjusted position. and pivotally mounted on the last mentioned cover and adapted to swing in the direction of its wedging movement and adapted to retain in its non-holding position the leafa stop to limit the disengaging movementof the Wedging member.

3.3In a loose-leaf binder; a pair of covers one of which has a rigid plate secured thereto; a flexible leaf-holding member secured to the other cover and extending through a guide clip on the plate; a wedging member pivotally mounted on the plate to swing in the direction of its wedging movement, and adapted to engage between the leaf-holding member and a Wallof theguide clip to hold thenleaf-holding member in adjusted position; theplate having an inwardly-turned flange adapted to engagethe outer leafwhen the cover to whichthe plate is secured is closed and hold the clip against marring contact with said leaf.

4. In a loose-leaf binder; a pair of covers; a flexible leaf-holding member secured to cne. co,ver. and extending through a guide clip on .theother cover Wedging means adapted to engage. between the leaf-holding member-and a wall ofthe guide clip to hold clip on the other cover; Wedging means adapted to engage between the leaf-holding member and a wall of the guide clip to hold the leaf-holding member in adjusted-posi- -1 tion andpivotally mounted. on the cover;

the last mentioned cover carrying an'inwardly-turned flange adapted to engage the outer leaf when said cover isclosed and hold thef clip against marring 'contact with said lea In testimony whereof I have hereunto set Y my hand in presence of two subscribing witnesses.

WILLIAM s. Pnonnrrr.

Witnesses:

CYRUs- WV. RICE HENRIETTA Kl VANDER MYDE."

Copies ot this patent maylbe obtained. for five cents each-,-by-addressing the Commissioner o f lia tents Washington, D. G. 

